Summary of Significant Accounting Policies - Insurance and Derivatives (Details) $ in Millions |
12 Months Ended |
|---|---|
|
Dec. 26, 2019
USD ($)
| |
| Insurance Loss Reserves [Abstract] | |
| Maximum loss before additional coverage applies | $ 10.0 |
| X | ||||||||||
- Definition Maximum amount of loss before stop-loss insurance recoveries. No definition available.
|
| X | ||||||||||
- References No definition available.
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